Release 4.11 drivers/nfc/s3fwrn5/nci.c
/*
* NCI based driver for Samsung S3FWRN5 NFC chip
*
* Copyright (C) 2015 Samsung Electrnoics
* Robert Baldyga <r.baldyga@samsung.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2 or later, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include <linux/completion.h>
#include <linux/firmware.h>
#include "s3fwrn5.h"
#include "nci.h"
static int s3fwrn5_nci_prop_rsp(struct nci_dev *ndev, struct sk_buff *skb)
{
__u8 status = skb->data[0];
nci_req_complete(ndev, status);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Robert Baldyga | 36 | 100.00% | 1 | 100.00% |
| Total | 36 | 100.00% | 1 | 100.00% |
static struct nci_driver_ops s3fwrn5_nci_prop_ops[] = {
{
.opcode = nci_opcode_pack(NCI_GID_PROPRIETARY,
NCI_PROP_AGAIN),
.rsp = s3fwrn5_nci_prop_rsp,
},
{
.opcode = nci_opcode_pack(NCI_GID_PROPRIETARY,
NCI_PROP_GET_RFREG),
.rsp = s3fwrn5_nci_prop_rsp,
},
{
.opcode = nci_opcode_pack(NCI_GID_PROPRIETARY,
NCI_PROP_SET_RFREG),
.rsp = s3fwrn5_nci_prop_rsp,
},
{
.opcode = nci_opcode_pack(NCI_GID_PROPRIETARY,
NCI_PROP_GET_RFREG_VER),
.rsp = s3fwrn5_nci_prop_rsp,
},
{
.opcode = nci_opcode_pack(NCI_GID_PROPRIETARY,
NCI_PROP_SET_RFREG_VER),
.rsp = s3fwrn5_nci_prop_rsp,
},
{
.opcode = nci_opcode_pack(NCI_GID_PROPRIETARY,
NCI_PROP_START_RFREG),
.rsp = s3fwrn5_nci_prop_rsp,
},
{
.opcode = nci_opcode_pack(NCI_GID_PROPRIETARY,
NCI_PROP_STOP_RFREG),
.rsp = s3fwrn5_nci_prop_rsp,
},
{
.opcode = nci_opcode_pack(NCI_GID_PROPRIETARY,
NCI_PROP_FW_CFG),
.rsp = s3fwrn5_nci_prop_rsp,
},
{
.opcode = nci_opcode_pack(NCI_GID_PROPRIETARY,
NCI_PROP_WR_RESET),
.rsp = s3fwrn5_nci_prop_rsp,
},
};
void s3fwrn5_nci_get_prop_ops(struct nci_driver_ops **ops, size_t *n)
{
*ops = s3fwrn5_nci_prop_ops;
*n = ARRAY_SIZE(s3fwrn5_nci_prop_ops);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Robert Baldyga | 27 | 96.43% | 1 | 50.00% |
| Robert Dolca | 1 | 3.57% | 1 | 50.00% |
| Total | 28 | 100.00% | 2 | 100.00% |
#define S3FWRN5_RFREG_SECTION_SIZE 252
int s3fwrn5_nci_rf_configure(struct s3fwrn5_info *info, const char *fw_name)
{
const struct firmware *fw;
struct nci_prop_fw_cfg_cmd fw_cfg;
struct nci_prop_set_rfreg_cmd set_rfreg;
struct nci_prop_stop_rfreg_cmd stop_rfreg;
u32 checksum;
int i, len;
int ret;
ret = request_firmware(&fw, fw_name, &info->ndev->nfc_dev->dev);
if (ret < 0)
return ret;
/* Compute rfreg checksum */
checksum = 0;
for (i = 0; i < fw->size; i += 4)
checksum += *((u32 *)(fw->data+i));
/* Set default clock configuration for external crystal */
fw_cfg.clk_type = 0x01;
fw_cfg.clk_speed = 0xff;
fw_cfg.clk_req = 0xff;
ret = nci_prop_cmd(info->ndev, NCI_PROP_FW_CFG,
sizeof(fw_cfg), (__u8 *)&fw_cfg);
if (ret < 0)
goto out;
/* Start rfreg configuration */
dev_info(&info->ndev->nfc_dev->dev,
"rfreg configuration update: %s\n", fw_name);
ret = nci_prop_cmd(info->ndev, NCI_PROP_START_RFREG, 0, NULL);
if (ret < 0) {
dev_err(&info->ndev->nfc_dev->dev,
"Unable to start rfreg update\n");
goto out;
}
/* Update rfreg */
set_rfreg.index = 0;
for (i = 0; i < fw->size; i += S3FWRN5_RFREG_SECTION_SIZE) {
len = (fw->size - i < S3FWRN5_RFREG_SECTION_SIZE) ?
(fw->size - i) : S3FWRN5_RFREG_SECTION_SIZE;
memcpy(set_rfreg.data, fw->data+i, len);
ret = nci_prop_cmd(info->ndev, NCI_PROP_SET_RFREG,
len+1, (__u8 *)&set_rfreg);
if (ret < 0) {
dev_err(&info->ndev->nfc_dev->dev,
"rfreg update error (code=%d)\n", ret);
goto out;
}
set_rfreg.index++;
}
/* Finish rfreg configuration */
stop_rfreg.checksum = checksum & 0xffff;
ret = nci_prop_cmd(info->ndev, NCI_PROP_STOP_RFREG,
sizeof(stop_rfreg), (__u8 *)&stop_rfreg);
if (ret < 0) {
dev_err(&info->ndev->nfc_dev->dev,
"Unable to stop rfreg update\n");
goto out;
}
dev_info(&info->ndev->nfc_dev->dev,
"rfreg configuration update: success\n");
out:
release_firmware(fw);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Robert Baldyga | 415 | 100.00% | 1 | 100.00% |
| Total | 415 | 100.00% | 1 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Robert Baldyga | 655 | 99.70% | 1 | 50.00% |
| Robert Dolca | 2 | 0.30% | 1 | 50.00% |
| Total | 657 | 100.00% | 2 | 100.00% |
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